CN212107407U - Casting elbow - Google Patents

Abstract

The utility model relates to a casting elbow field discloses a casting elbow, including the elbow body, the elbow body is the arc tubular construction, and the radian of elbow body is 15 ~ 120, and the both ends of elbow body have straight line internal thread section, and the internal diameter of straight line internal thread section is greater than the internal diameter of elbow body, and straight line internal thread section forms the stair structure with the interior wall connection department of elbow body, and the inner wall middle part of the outer arc section of elbow body is equipped with a pit, imbeds a wear-resisting gasket in the pit, and the surface of wear-resisting gasket flushes with the inner wall of elbow body, and the wear-resisting gasket closely laminates with the pit all around. The utility model increases the wear resistance by using the embedded wear-resistant gasket, can bear long-term fluid scouring and prolongs the service life; the connecting part of the straight-line internal thread section and the inner wall of the elbow body forms a step structure, and when the straight-line internal thread section is in threaded connection with a pipe fitting, the straight-line internal thread section has a supporting effect on the pipe fitting in the vertical direction, reduces the stress of screw threads, and keeps the threaded connection reliable for a long time.

Description

Casting elbow

Technical Field

The utility model relates to a casting elbow field, concretely relates to casting elbow.

Background

The elbow is a common pipeline connecting piece, has wide application and extremely large use amount. When the traditional elbow is used vertically, the inner wall of the elbow is subjected to scouring of water flow, the pipe wall is thinned after long-term use, the strength is reduced, particularly, the elbow is used in a corrosive fluid environment, the erosion action and the scouring are performed, the thinning rate of the pipe wall is higher, and the service life of the elbow is shorter.

SUMMERY OF THE UTILITY MODEL

In view of the deficiency of the background art, the utility model provides a casting elbow, the problem of solution is prior art, and traditional elbow is in vertical use, owing to receive fluidic long-term the erodeing, leads to the pipe wall attenuation of elbow, subtracts the life of short elbow.

For solving the technical problem, the utility model provides a following technical scheme:

the utility model provides a casting elbow, includes the elbow body, the elbow body is the arc tubular structure, the radian of elbow body is 15 ~ 120, the both ends of elbow body have straight line internal thread section, the internal diameter of straight line internal thread section is greater than the internal diameter of elbow body, the internal wall junction of straight line internal thread section and elbow body forms the stair structure, the inner wall middle part of the outer segmental arc of elbow body is equipped with a pit, embedding wear-resisting gasket in the pit, wear-resisting gasket's surface with the inner wall of elbow body flushes, wear-resisting gasket all around with the pit closely laminates.

Preferably, the wear-resistant gasket is made of a ceramic sheet.

Preferably, the wall thickness of the outer arc section of the elbow body is greater than the wall thickness of the inner arc section of the elbow body.

Preferably, the whole outer arc section of the elbow body bulges outwards.

Preferably, the inner wall of the elbow body is lined with a mesh pipe.

Preferably, the mesh tube is made of corrosion resistant plastic.

Preferably, the mesh pipe is hollowed out at the position of the wear-resistant gasket.

Compared with the prior art, the utility model following beneficial effect has at least:

1) the embedded wear-resistant gasket is utilized to increase the wear resistance, and can bear long-term fluid scouring, particularly, the wear-resistant gasket made of ceramics and the like with corrosion resistance is used, so that the wear-resistant gasket can resist scouring under the corrosive fluid environment, the strength and the wall thickness are not reduced, and the service life is prolonged;

2) the straight line internal thread section forms the stair structure with the inner wall junction of elbow body, when with pipe fitting threaded connection, in vertical direction, has the supporting role to the pipe fitting, avoids vertical power all to be born by the thread, reduces the atress of thread, keeps threaded connection reliable for a long time.

Drawings

The utility model discloses there is following figure:

fig. 1 is a schematic view of the present invention.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

As shown in fig. 1, a casting elbow, including elbow body 1, elbow body 1 is the arc tubular structure, elbow body 1's radian is 15 ~ 120, elbow body 1's both ends have straight line internal thread section 2, straight line internal thread section 2's internal diameter is greater than elbow body 1's internal diameter, straight line internal thread section 2 forms stair structure 3 with elbow body 1's inner wall junction, elbow body 1's outer arc section 4's inner wall middle part is equipped with a pit 6, embedding wear-resisting gasket 5 in the pit 6, wear-resisting gasket 5's surface with elbow body 1's inner wall flushes, wear-resisting gasket 5 all around with pit 6 closely laminates.

In addition, the wear-resistant gasket 5 is made of a ceramic sheet, and the corrosion resistance of the ceramic sheet is utilized to ensure that the elbow body 1 can keep the wear resistance in a corrosive liquid environment.

In addition, the wall thickness of the outer arc section 4 of the elbow body 1 is larger than that of the inner arc section 7 of the elbow body 1.

In addition, the whole outer arc section 4 of the elbow body 1 bulges outwards, so that the outer arc section 4 of the elbow body 1 has enough space for arranging the concave pit 6 and embedding the wear-resistant gasket 5, and the spatial arrangement is reasonable.

In addition, the inner wall of the elbow body 1 is lined with the mesh pipe 8 to reduce the noise generated when the fluid scours the pipe wall.

In addition, the mesh pipe 8 is made of a corrosion-resistant plastic net in a winding mode, corrosion resistance is enhanced, and long-term reliable use of the elbow body 1 is guaranteed.

In addition, the mesh pipe 8 is hollowed out at the wear-resistant pad 5.

The utility model increases the wear resistance by using the embedded wear-resistant gasket, can bear long-term fluid scouring, especially can bear the scouring under the corrosive fluid environment by using the wear-resistant gasket with corrosion resistance such as ceramics and the like, keeps the strength and the wall thickness not reduced, and prolongs the service life; the straight line internal thread section forms the stair structure with the inner wall junction of elbow body, when with pipe fitting threaded connection, in vertical direction, has the supporting role to the pipe fitting, avoids vertical power all to be born by the thread, reduces the atress of thread, keeps threaded connection reliable for a long time.

In light of the above, the present invention is not limited to the above embodiments, and various changes and modifications can be made by the worker without departing from the scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (7)

1. The utility model provides a casting elbow, includes the elbow body, its characterized in that: the elbow body is the arc tubular construction, the radian of elbow body is 15 ~ 120, the both ends of elbow body have straight line internal thread section, the internal diameter of straight line internal thread section is greater than the internal diameter of elbow body, the internal wall junction of straight line internal thread section and elbow body forms stair structure, the inner wall middle part of the outer segmental arc of elbow body is equipped with a pit, embedding a wear-resisting gasket in the pit, wear-resisting gasket's surface with the inner wall of elbow body flushes, wear-resisting gasket around with the pit closely laminates.

2. The cast elbow according to claim 1, wherein: the wear-resistant gasket is made of a ceramic sheet.

3. The cast elbow according to claim 1, wherein: the wall thickness of the outer arc section of the elbow body is larger than that of the inner arc section of the elbow body.

4. The cast elbow according to claim 3, wherein: the whole outer arc section of the elbow body bulges outwards.

5. The cast elbow according to claim 1, wherein: and mesh pipes are sleeved on the inner wall of the elbow body.

6. The cast elbow according to claim 5, wherein: the mesh tube is made of corrosion-resistant plastic.

7. The cast elbow according to claim 5, wherein: the mesh pipe is hollowed out at the position of the wear-resistant gasket.

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